Today, the 27th day of February in in 1670, on the order of Leopold I, thousands of Jews were expelled from Austria. there have been minor expulsion such as that in 1420, they were returned by Federick the third in 1440. On this day in 1670 however, Leopold ordered the expusion of all Jews from Austria!

also on this day 27/02 in 1940, it was the discovery of Carbon 14 isotope by Martin Kamen and Sam Ruben at the University of California Radiation Laboratory. Carbon 14 is a radioactive isotope, mass number 14 and a half life of 5700 years!